Picket fence stake



FIG. 1 is a front/side perspective view of a picket fence stake, showing my new design;

FIG. 2 is an enlarged front elevational view of the top portion thereof, where the rear view is identical in appearance;

FIG. 3 is an enlarged side elevational view of the top portion thereof, where the opposite side is identical in appearance; and,

FIG. 4 is an enlarged bottom plan view thereof. 

The ornamental design for a picket fence stake, as shown and described. 